Detroit Radiant TP-264F Pressure Switch Els PW 17895 or the control board displaying

or the control board displaying a "pressure switch stuck open" fault code

Both models share the same technical specifications

This 24-inch OEM replacement part is engineered for high-accuracy millivolt signal generation

While this is a common Nordyne furnace drain line

and ensuring the secondary drain line remains functional

Detroit Radiant TP-264F Pressure Switch Els PW 17895 or the control board displayingThe Detroit Radiant TP 264F Pressure Switch is an essential OEM replacement part designed for Re Verber Ray tube heaters. This differential pressure switch features a normally open (N O) configuration, serving as a critical safety interlock that monitors combustion airflow. For high output systems ranging from 150,000 to 200,000 BTU H, this component ensures the burner only fires when the blower achieves the required differential pressure set point.